NAICS 336611: Ship Building and Repairing
This U.S. industry comprises establishments primarily engaged in operating shipyards.  Shipyards are fixed facilities with drydocks and fabrication equipment capable of building a ship, defined as watercraft typically suitable or intended for other than personal or recreational use.  Activities of shipyards include the construction of ships, their repair, conversion and alteration, the production of prefabricated ship and barge sections, and specialized services, such as ship scaling.

Illustrative Examples:

Barge building
Cargo ship building
Drilling and production platforms, floating, oil and gas, building
Passenger ship building
Submarine building
Yachts built in shipyards 

ExioML sector: Other transport equipment (35)
Region: US | Year: 2022
Sector value added: 96834.7789003 M EUR | Employment: 1575.85337106 thousand persons
Sector GHG emissions: 23098039158.9 kg CO2 eq | Energy carrier net total: 470684.616744 TJ | Carbon intensity: 0.2385304063396632

Company: National Stl & Shipbuilding Co
National Steel and Shipbuilding Company, commonly referred to as NASSCO, is an American shipbuilding company with four shipyards located in San Diego, Norfolk, Bremerton, and Mayport. It is a division of General Dynamics. NASSCO owns a subsidiary manufacturing facility with TIMSA in Mexicali, Mexico.